open-story-teller/story-editor/src/web_server.h
anthony@rabine.fr 432d72c80c
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First web server route, use of preact for raylib html version
2025-01-09 11:13:56 +01:00

170 lines
4.5 KiB
C++

#pragma once
#include "CivetServer.h"
#include "library_manager.h"
class HandlerBase : public CivetHandler
{
public:
protected:
// Utility methods for children
bool Reply(struct mg_connection *conn, const nlohmann::json &json);
};
class LibraryManagerHandler : public HandlerBase
{
public:
LibraryManagerHandler(LibraryManager &libraryManager)
: m_libraryManager(libraryManager)
{
}
bool handleGet(CivetServer *server, struct mg_connection *conn);
bool
handlePost(CivetServer *server, struct mg_connection *conn)
{
/* Handler may access the request info using mg_get_request_info */
const struct mg_request_info *req_info = mg_get_request_info(conn);
long long rlen, wlen;
long long nlen = 0;
long long tlen = req_info->content_length;
char buf[1024];
mg_printf(conn,
"HTTP/1.1 200 OK\r\nContent-Type: "
"text/html\r\nConnection: close\r\n\r\n");
mg_printf(conn, "<html><body>\n");
mg_printf(conn, "<h2>This is the Foo POST handler!!!</h2>\n");
mg_printf(conn,
"<p>The request was:<br><pre>%s %s HTTP/%s</pre></p>\n",
req_info->request_method,
req_info->request_uri,
req_info->http_version);
mg_printf(conn, "<p>Content Length: %li</p>\n", (long)tlen);
mg_printf(conn, "<pre>\n");
while (nlen < tlen) {
rlen = tlen - nlen;
if (rlen > sizeof(buf)) {
rlen = sizeof(buf);
}
rlen = mg_read(conn, buf, (size_t)rlen);
if (rlen <= 0) {
break;
}
wlen = mg_write(conn, buf, (size_t)rlen);
if (wlen != rlen) {
break;
}
nlen += wlen;
}
mg_printf(conn, "\n</pre>\n");
mg_printf(conn, "</body></html>\n");
return true;
}
#define fopen_recursive fopen
bool
handlePut(CivetServer *server, struct mg_connection *conn)
{
/* Handler may access the request info using mg_get_request_info */
const struct mg_request_info *req_info = mg_get_request_info(conn);
long long rlen, wlen;
long long nlen = 0;
long long tlen = req_info->content_length;
FILE * f;
char buf[1024];
int fail = 0;
#ifdef _WIN32
_snprintf(buf, sizeof(buf), "D:\\somewhere\\%s\\%s", req_info->remote_user, req_info->local_uri);
buf[sizeof(buf)-1] = 0;
if (strlen(buf)>255) {
/* Windows will not work with path > 260 (MAX_PATH), unless we use
* the unicode API. However, this is just an example code: A real
* code will probably never store anything to D:\\somewhere and
* must be adapted to the specific needs anyhow. */
fail = 1;
f = NULL;
} else {
f = fopen_recursive(buf, "wb");
}
#else
snprintf(buf, sizeof(buf), "~/somewhere/%s/%s", req_info->remote_user, req_info->local_uri);
buf[sizeof(buf)-1] = 0;
if (strlen(buf)>1020) {
/* The string is too long and probably truncated. Make sure an
* UTF-8 string is never truncated between the UTF-8 code bytes.
* This example code must be adapted to the specific needs. */
fail = 1;
f = NULL;
} else {
f = fopen_recursive(buf, "w");
}
#endif
if (!f) {
fail = 1;
} else {
while (nlen < tlen) {
rlen = tlen - nlen;
if (rlen > sizeof(buf)) {
rlen = sizeof(buf);
}
rlen = mg_read(conn, buf, (size_t)rlen);
if (rlen <= 0) {
fail = 1;
break;
}
wlen = fwrite(buf, 1, (size_t)rlen, f);
if (wlen != rlen) {
fail = 1;
break;
}
nlen += wlen;
}
fclose(f);
}
if (fail) {
mg_printf(conn,
"HTTP/1.1 409 Conflict\r\n"
"Content-Type: text/plain\r\n"
"Connection: close\r\n\r\n");
} else {
mg_printf(conn,
"HTTP/1.1 201 Created\r\n"
"Content-Type: text/plain\r\n"
"Connection: close\r\n\r\n");
}
return true;
}
private:
LibraryManager &m_libraryManager;
};
class WebServer : public CivetHandler
{
public:
WebServer(LibraryManager &libraryManager);
~WebServer();
private:
LibraryManager &m_libraryManager;
CivetServer m_server;
LibraryManagerHandler m_libraryManagerHandler;
};